Nick Clegg is the best of the three current party leaders as a speaker, but this was only a so-so effort in his terms. Quite interesting, though.
On the other hand if you're a floating voter, he has a case, and he made it quite convincingly.
The truth is I see no convincing evidence that we feel inclined to give either Dave or Ed a majority in 2015. So Clegg may be here to stay. That was essentially his case today. And he may well be right.